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Routing method for partially entangled quantum pairs bridging communication networks

A communication network, quantum pair technology, applied in data exchange networks, digital transmission systems, electrical components, etc., can solve the problem that the quantum pair bridging method cannot obtain the best performance, reduce wireless transmission expenses, increase network capacity, low-complexity effects

Active Publication Date: 2018-07-20
SOUTHEAST UNIV
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0004] Existing routing protocols for wireless quantum communication networks, suitable for hop-by-hop quantum communication methods between nodes, do not achieve optimal performance in quantum pair bridging methods

Method used

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  • Routing method for partially entangled quantum pairs bridging communication networks
  • Routing method for partially entangled quantum pairs bridging communication networks
  • Routing method for partially entangled quantum pairs bridging communication networks

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Embodiment Construction

[0036] The present invention will be further described below in conjunction with embodiment and accompanying drawing.

[0037]A specific embodiment of the inventive method, the whole process is as follows:

[0038] Suppose there is a communication network composed of nodes S, A, B, C, D, E, F, G, H, I, such as Figure 8 shown. The source node S needs to securely transmit information to the destination node D through quantum teleportation. Node S and node D are not adjacent nodes. The straight line path represents the classical link, and the dotted line path represents the quantum link. Here it is assumed that all the quantum links in the figure are reachable by classical information. The number represents the number of partially entangled states shared between adjacent nodes, and each node in the network predicts the number of partially entangled quantum pairs with adjacent nodes.

[0039] a. When the source node S cannot find an available route to the destination node, it ...

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Abstract

The invention relates to a method for routing a part entangled quantum pair bridging communication network. The method comprises the following steps: launching routing request information 1 by an original node; answering the routing request information by a destination node; launching routing request information 2 by the original node; launching routing request information 3 by a path node; answering the routing request information of each node by the destination node; and establishing routing. The routing metric of each node is updated on time by the node, wherein the routing metric is calculated through a special formula, and the node selects and determines routing according to the routing metric.

Description

technical field [0001] The invention relates to a routing method applied to a partly entangled quantum pair bridging communication network, and belongs to the technical field of wireless quantum communication and information dissemination. Background technique [0002] Traditional routing protocols used in wireless classic communication networks can be divided into table-driven routing protocols and on-demand routing protocols. Nodes in the table-driven routing protocol exchange routing information periodically, which consumes network resources, and the efficiency is low when the network topology changes; the demand-driven routing protocol does not need to periodically exchange routing information, and nodes initiate a route discovery as needed This process is applicable to the network whose topology changes. [0003] The partially entangled quantum pair bridge communication network is composed of wireless quantum communication terminals, quantum channels and wireless chann...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/751
CPCH04L45/02
Inventor 余旭涛蔡晓菲王侃张在琛徐进
Owner SOUTHEAST UNIV
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